WO2020059221A1 - ワイパレバーアッセンブリ及びワイパブレード - Google Patents

ワイパレバーアッセンブリ及びワイパブレード Download PDF

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Publication number
WO2020059221A1
WO2020059221A1 PCT/JP2019/022633 JP2019022633W WO2020059221A1 WO 2020059221 A1 WO2020059221 A1 WO 2020059221A1 JP 2019022633 W JP2019022633 W JP 2019022633W WO 2020059221 A1 WO2020059221 A1 WO 2020059221A1
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WO
WIPO (PCT)
Prior art keywords
lever
wiper
wall
main
yoke
Prior art date
Application number
PCT/JP2019/022633
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
松本　浩志
Original Assignee
株式会社デンソー
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2018173730A external-priority patent/JP7131226B2/ja
Priority claimed from JP2018176479A external-priority patent/JP7131238B2/ja
Priority claimed from JP2018176480A external-priority patent/JP7131239B2/ja
Priority claimed from JP2018179440A external-priority patent/JP7044021B2/ja
Priority claimed from JP2018182682A external-priority patent/JP7131257B2/ja
Application filed by 株式会社デンソー filed Critical 株式会社デンソー
Priority to US17/275,519 priority Critical patent/US11560124B2/en
Priority to CN201980060996.6A priority patent/CN112739584A/zh
Priority to DE112019004654.3T priority patent/DE112019004654T5/de
Publication of WO2020059221A1 publication Critical patent/WO2020059221A1/ja

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B60S1/38—Wiper blades
    • B60S1/3806—Means, or measures taken, for influencing the aerodynamic quality of the wiper blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B60S1/38—Wiper blades
    • B60S1/3801—Wiper blades characterised by a blade support harness consisting of several articulated elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B60S1/38—Wiper blades
    • B60S2001/3812—Means of supporting or holding the squeegee or blade rubber
    • B60S2001/3813—Means of supporting or holding the squeegee or blade rubber chacterised by a support harness consisting of several articulated elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B60S1/38—Wiper blades
    • B60S2001/3812—Means of supporting or holding the squeegee or blade rubber
    • B60S2001/3813—Means of supporting or holding the squeegee or blade rubber chacterised by a support harness consisting of several articulated elements
    • B60S2001/3815—Means of supporting or holding the squeegee or blade rubber chacterised by a support harness consisting of several articulated elements chacterised by the joint between elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B60S1/38—Wiper blades
    • B60S2001/3827—Wiper blades characterised by the squeegee or blade rubber or wiping element
    • B60S2001/3836—Wiper blades characterised by the squeegee or blade rubber or wiping element characterised by cross-sectional shape

Definitions

  • the present invention relates to a wiper lever assembly and a wiper blade.
  • JP-T-2006-513928 discloses a flat wiper blade that does not use a wiper lever assembly having a tournament structure in which a plurality of levers are connected in a tournament shape.
  • rigidity and elasticity are given to the wiper strip (blade rubber) by a leaf spring-like support element (backing).
  • the wiper blade also has a wind deflector strip fixed to the support element via the first and second claws.
  • a fin surface is formed on the upper surface of the wind deflector strip for converting the traveling wind into a pressing force on the wiping surface side.
  • WO 2010/035794 describes a wiper blade including a tournament-structured lever member (wiper lever assembly), a blade rubber, and two movable covers.
  • the lever member includes a main lever whose center in the longitudinal direction is detachably connected to the wiper arm, and two yoke levers rotatably connected to both ends in the longitudinal direction of the main lever.
  • a movable cover is rotatably connected to each of these yoke levers, and a blade rubber is held by each of the yoke levers and each of the movable covers.
  • a fin surface is formed on the upper surfaces of the main lever and each movable cover to convert the traveling wind into a pressing force on the wiping surface side.
  • the wiper blade described in Japanese Patent Application Publication No. 2006-513928 is of a flat type, so that the height of the wiper blade from the wiping surface can be kept low, and the aerodynamic characteristics are improved.
  • the distribution pressure on the wiping surface is less likely to be uniform, so that there is a disadvantage that the wiping performance is inferior.
  • an object of the present invention is to provide a wiper lever assembly capable of improving aerodynamic characteristics while securing good wiping performance, and a wiper blade including the wiper lever assembly.
  • a wiper lever assembly is a wiper lever assembly for gripping a blade rubber for wiping a wiping surface of a vehicle, wherein a distal end portion of a wiper arm is connected to a central portion in a longitudinal direction, and both ends in a longitudinal direction.
  • a first fin surface is formed on the upper surface of the side, which is downwardly sloped toward the front in the width direction, and is open to the wiping surface side, and has a height dimension that is larger on the rear side than on the front side in the width direction.
  • a main lever formed on both sides in the longitudinal direction of the main lever; and a blade rubber disposed on a side opposite to the main lever on a side opposite to the main lever, the main lever being disposed on both sides in the longitudinal direction of the main lever with the longitudinal direction of the main lever as a length.
  • a second fin surface is formed on the upper surface, which is inclined downward toward the front in the width direction.
  • a pair of movable covers in which a movable accommodation chamber whose height is enlarged on the rear side than on the front side are formed, and the longitudinal direction of the main lever and each of the movable covers is a longitudinal direction, and each of the main accommodation chambers and A grip portion that is housed across the movable housing chamber, is rotatably connected to the main lever and each of the movable covers around an axis extending in the width direction, and has a grip portion that grips the blade rubber at both ends in the longitudinal direction.
  • a pair of yoke levers whose heights are larger on the rear side than on the front side.
  • a pair of movable covers are continuously arranged on both sides in the longitudinal direction of the main lever in which the distal end of the wiper arm is connected to the central part in the longitudinal direction.
  • First and second fin surfaces are formed on the upper surface on both sides in the longitudinal direction of the main lever and on the upper surface of each movable cover, respectively.
  • main housing chambers that are open on the wiping surface side (lower side) and whose height dimension is larger on the rear side than on the front side in the width direction are formed, respectively.
  • Each movable cover is formed with a movable storage chamber which is open on the wiping surface side (lower side) and whose height dimension is larger on the rear side than on the front side in the width direction. Then, a pair of yoke levers accommodated in each main accommodation room and each movable accommodation room are connected to the main lever and each movable cover so as to be rotatable around an axis extending in the width direction.
  • the blade rubber is gripped by gripping portions provided on each movable cover on the side opposite to the main lever and gripping portions provided on both ends in the longitudinal direction of each yoke lever. Accordingly, the pressing force applied from the wiper arm to the main lever is dispersed in the longitudinal direction of the blade rubber via each yoke lever, so that the distribution pressure on the wiping surface becomes uniform and the wiping performance is improved.
  • the yoke lever accommodated in the main accommodating chamber and the movable accommodating chamber as described above has a larger height dimension at the rear side than at the front side in the width direction, the expansion of the yoke lever due to the expansion.
  • the yoke lever can be compactly accommodated in the main accommodating chamber and the movable accommodating chamber while ensuring strength.
  • the main lever and the movable cover having the first and second fin surfaces inclined downward toward the front in the width direction on the upper surface as described above have a height dimension at the rear side rather than the front side in the width direction.
  • the increase in the height can be suppressed.
  • the protruding height from the wiping surface can be kept low, so that the aerodynamic characteristics can be improved.
  • a wiper lever assembly according to a second aspect of the present invention is the wiper lever assembly according to the first aspect, wherein the yoke lever has a metal part made of metal and a resin part made of resin provided outside the metal part. I have.
  • the yoke lever has a configuration in which the resin portion is provided outside the metal portion. It is easy to achieve both lever strength and size reduction. Further, for example, when the metal portion is embedded in the resin portion, the exposure of the metal portion is reduced, so that painting for rust prevention and anti-glare can be unnecessary.
  • a wiper lever assembly according to a third aspect of the present invention is the wiper lever assembly according to the second aspect, wherein the main lever and the movable cover are made of resin, and the yoke lever is provided in the resin portion with the main lever and the movable cover. It is connected rotatably.
  • the grip portion is formed on the resin portion.
  • the wiper lever assembly according to a fifth aspect of the present invention is the wiper lever assembly according to any one of the first to fourth aspects, wherein the yoke lever has the main lever and the movable lever at a lower side wider than the upper side. It is rotatably connected to the cover.
  • the wiper lever assembly since the wiper lever assembly is configured as described above, it is possible to set the axial length of each of the rotation connecting portions of the main lever, the movable cover, and the yoke lever in the width direction. . As a result, it is possible to suppress a change in the attitude of the yoke lever with respect to the main lever and the movable cover (the attitude when viewed from the longitudinal direction, that is, the tilting attitude).
  • a wiper lever assembly is the wiper lever assembly according to any one of the first to fifth aspects, wherein the yoke lever has a plate-like plate-shaped portion whose vertical direction is a plate thickness direction; And a standing wall protruding upward from the widthwise rear side of the plate-shaped portion.
  • a wiper lever assembly according to a seventh aspect of the present invention is the wiper lever assembly according to the sixth aspect, wherein the main lever and the movable cover have a pair of opposed walls opposed to each other with the standing wall portion interposed therebetween.
  • the upright wall provided on the yoke lever and the pair of opposed walls provided on the main lever and the movable cover engage with the main lever and the movable cover.
  • the play of the yoke lever can be suppressed.
  • the metal portion is embedded in the resin portion corresponding to the plate portion of the yoke lever.
  • a plate-like plate-shaped portion whose vertical direction is a plate thickness direction, and a standing wall embedded in the resin portion corresponding to the standing wall of the yoke lever and projected upward from a width direction rear side of the plate-shaped portion. And a part.
  • a wiper lever assembly according to a ninth aspect of the present invention is the wiper lever assembly according to any one of the first to eighth aspects, wherein an upper surface of the yoke lever has an upper surface of the main housing chamber and an upper surface of the movable housing chamber. A pair of pressing portions that are in contact with each other are formed to protrude upward.
  • the pair of pressurizing portions provided on the upper surface of the yoke lever contact the upper surface of the main storage chamber and the upper surface of the movable storage chamber.
  • the pressing force from the wiper arm, the reaction force from the wiping surface, and the like are transmitted between the yoke lever, the main lever, and the movable cover via the pair of pressurizing portions.
  • the protruding height from the wiping surface can be further reduced.
  • a wiper lever assembly is the wiper lever assembly according to any one of the first to ninth aspects, wherein the protrusions are formed on both front and rear surfaces of each of the main storage chambers and the movable storage chambers in the width direction.
  • the portions are respectively fitted into four concave portions formed on both front and rear sides in the width direction of the yoke lever, and the yoke lever is rotatably connected to the main lever and the movable cover.
  • the wiper lever assembly according to the tenth aspect, as described above, for example, the main lever and the movable cover and the yoke lever are rotatably connected to each other using the shaft member.
  • the configuration and assembly of each of the rotating connection portions between the lever and the movable cover and the yoke lever are simplified.
  • the wiper lever assembly according to an eleventh aspect of the present invention is the wiper lever assembly according to the sixth aspect or any one of the seventh to tenth aspects citing the sixth aspect, wherein the main housing chamber of the main lever includes: A first opening that opens on the wiping surface side, the movable storage chamber of the pair of movable covers has a second opening that opens on the wiping surface side, and the pair of yokes In the lever, the plate portion closes the first opening and the second opening.
  • a wiper lever assembly according to a twelfth aspect of the present invention is the wiper lever assembly according to any one of the first to eleventh aspects, wherein the main lever moves each of the main storage chambers in the longitudinal direction at the longitudinal center of the main lever. And a pair of central side blocking walls that are closed at the same time.
  • a wiper lever assembly according to a thirteenth aspect of the present invention is the wiper lever assembly according to any one of the first to twelfth aspects, wherein the movable cover opposes the movable storage chamber to the yoke lever and the main lever. It has an outer blocking wall that is longitudinally blocked on the side.
  • a wiper lever assembly is the wiper lever assembly according to any one of the first to thirteenth aspects, wherein the main lever and the movable cover each include a front wall and a rear wall facing each other in the width direction; An upper wall connecting upper end portions of the front wall and the rear wall in a width direction, wherein each of the front walls is a front inner wall, and one of the front inner walls is continuous with the upper wall in the width direction.
  • a front outer wall formed toward the side, and each of the yoke levers is rotatably connected to each of the front inner wall and each of the rear walls.
  • the second fin surface is formed to be continuous with each other, the first fin surface is formed on the upper surface of the upper wall and the front outer wall of the main lever, and the second fin surface is formed on the movable cover. Formed on the upper surface of the upper wall and the front outer wall There.
  • a wiper lever assembly is the wiper lever assembly according to the fourteenth aspect, wherein one of the concave portion and the convex portion formed on each of the front inner wall and each of the rear walls is provided on both front and rear sides in the width direction of the yoke lever.
  • the yoke lever is rotatably connected to the main lever and the movable cover by being fitted into the other of the formed four convex portions and the concave portions, respectively, and each of the front inner walls is formed of the concave portion and the convex portion.
  • the yoke lever has a flexible portion formed with one side and a reinforcing portion reinforced more than the flexible portion, and the yoke lever has a front projection protruding so as to be in contact with the reinforcing portion. Is formed.
  • a wiper lever assembly is the wiper lever assembly according to any one of the first to fifteenth aspects, wherein the wiper lever assembly is provided separately from each of the rotation connecting portions of the main lever, the movable cover, and the yoke lever.
  • a load transmitting portion, the load transmitting portion is configured by an engaged portion provided on the main lever and the movable cover, and an engaging portion provided on the yoke lever, and the main lever and the A load acting between the movable cover and the yoke lever along the longitudinal direction thereof is received by the engagement between the engaged portion and the engagement portion.
  • the load transmitting portion provided separately from the main lever and the respective rotational connecting portions of the movable cover and the yoke lever includes an engaged portion provided on the main lever and the movable cover. And an engaging portion provided on the yoke lever.
  • the load acting along the longitudinal direction between the main lever and the movable cover and the yoke lever is received by the engagement between the engaged portion and the engaging portion. Thereby, it can prevent or suppress that the said load acts on each said rotation connection part.
  • the blade rubber is gripped by a blade rubber for wiping a wiping surface of a vehicle, and the gripping portions provided on the pair of movable covers and the pair of yoke levers.
  • the wiper lever assembly according to any one of the first to sixteenth aspects.
  • the blade rubber for wiping the wiping surface of the vehicle is gripped by the pair of movable covers provided in the wiper lever assembly and the grips provided on the pair of yoke levers. Since the wiper lever assembly is one of the first to eleventh aspects, the above-described operation and effect can be obtained.
  • the wiper blade according to an eighteenth aspect of the present invention is the wiper blade according to the seventeenth aspect, wherein the blade rubber is disposed below the wiper lever assembly, is gripped by the yoke lever and the movable cover, and is pressed against the wiping surface.
  • a gap is formed between the yoke lever and the movable cover, and a protrusion is formed on at least one of a lower surface of the movable cover, a lower surface of the yoke lever, and an upper surface of the blade rubber.
  • a blocking portion extending in the longitudinal direction of the blade rubber in the internal space of the wiper lever assembly, and blocking outflow of traveling wind that has flowed into at least one of the gaps. ing.
  • the wiper blade according to a nineteenth aspect of the present invention is the wiper blade according to the eighteenth aspect, wherein the blocking portion is vertically extended from a lower surface of the movable cover that is recessed upward when viewed in a longitudinal direction of the blade rubber. Ribs.
  • the vertical rib is disposed above a widthwise rear end of the blade rubber.
  • FIG. 4 is a perspective view showing a part of the wiper blade, showing a cut surface along line F7-F7 in FIG. 3;
  • FIG. 4 is a perspective view showing a part of the wiper blade, showing a cut surface taken along line F8-F8 in FIG. 3;
  • FIG. 4 is a perspective view showing a part of the wiper blade, showing a cut surface taken along line F8-F8 in FIG. 3;
  • FIG. 4 is a perspective view showing a part of the wiper blade, and is a view showing a cut surface along a line F9-F9 in FIG. 3;
  • FIG. 4 is a perspective view showing a part of the wiper blade, showing a cut surface along a line F10-F10 in FIG. 3;
  • FIG. 4 is a perspective view showing a part of the wiper blade, showing a cut surface along a line F11-F11 in FIG. 3;
  • FIG. 4 is a perspective view showing a part of the wiper blade, and is a view showing a cut surface along a line F12-F12 in FIG. 3; It is sectional drawing which looked at the cut surface shown in FIG. 7 from the longitudinal direction of the wiper blade.
  • FIG. 7 It is sectional drawing which looked at the cut surface shown in FIG. 7 from the longitudinal direction of the wiper blade.
  • FIG. 9 is a cross-sectional view of the cut surface illustrated in FIG. 8 as viewed from a longitudinal direction of the wiper blade. It is sectional drawing which looked at the cut surface shown in FIG. 9 from the longitudinal direction of the wiper blade. It is sectional drawing which looked at the cut surface shown in FIG. 10 from the longitudinal direction of the wiper blade.
  • FIG. 13 is a cross-sectional view of the cut surface illustrated in FIG. 12 when viewed from a longitudinal direction of the wiper blade.
  • FIG. 2 is a perspective view illustrating a distal end portion of the wiper lever assembly according to the first embodiment of the present invention as viewed from below.
  • FIG. 3 is a perspective view showing a base end portion of the wiper lever assembly as viewed from below.
  • FIG. 3 is an exploded perspective view showing a part of the wiper lever assembly. It is a perspective view showing the main lever of the same wiper lever assembly. It is a perspective view showing the main lever of the same wiper lever assembly.
  • FIG. 23 is an enlarged perspective view showing a part of FIG. 22. It is a perspective view which shows the movable cover of the wiper lever assembly. It is a perspective view showing the yoke lever of the same wiper lever assembly. It is a perspective view showing the yoke lever of the same wiper lever assembly. It is a perspective view showing the yoke lever of the same wiper lever assembly. It is a perspective view of the metal part which the yoke lever has. It is a perspective view of the same metal part. It is a perspective view of the same metal part.
  • FIG. 18 is a cross-sectional view corresponding to FIG. 17 for describing a lift generated in a wiper blade according to a comparative example.
  • FIG. 18 is a cross-sectional view corresponding to FIG. 17 for describing a lift generated in the wiper blade according to the first embodiment of the present invention.
  • FIG. 3 is an aerodynamic analysis diagram in a state where a vertical rib of a movable cover is arranged above a front end of a blade rubber in the wiper blade according to the first embodiment of the present invention.
  • FIG. 3 is an aerodynamic analysis diagram in a state where a vertical rib of a movable cover is arranged above a front end of a blade rubber in the wiper blade according to the first embodiment of the present invention.
  • FIG. 34C is an aerodynamic analysis diagram of the wiper blade according to the first embodiment of the present invention in a state where the vertical ribs of the movable cover are disposed behind the position shown in FIG. 33A.
  • FIG. 34B is an aerodynamic analysis diagram of the wiper blade according to the first embodiment of the present invention in a state in which the vertical ribs of the movable cover are disposed behind the position shown in FIG. 33B.
  • FIG. 34C is an aerodynamic analysis diagram of the wiper blade according to the first embodiment of the present invention in a state where the vertical ribs of the movable cover are disposed behind the position shown in FIG. 33C.
  • FIG. 34B is an aerodynamic analysis diagram of the wiper blade according to the first embodiment of the present invention in a state in which the vertical ribs of the movable cover are disposed behind the position shown in FIG. 33B.
  • FIG. 34C is an aerodynamic analysis diagram of the wiper blade according to the first embodiment of the present invention in a state where the vertical
  • FIG. 33C is an aerodynamic analysis diagram of the wiper blade according to the first embodiment of the present invention in a state where the vertical ribs of the movable cover are arranged behind the position shown in FIG. 33D.
  • FIG. 34C is an aerodynamic analysis diagram of the wiper blade according to the first embodiment of the present invention in a state where the vertical ribs of the movable cover are disposed behind the position shown in FIG. 33E.
  • FIG. 34C is an aerodynamic analysis diagram of the wiper blade according to the first embodiment of the present invention in a state where the vertical ribs of the movable cover are disposed behind the position shown in FIG. 33F.
  • FIG. 33C is an aerodynamic analysis diagram of the wiper blade according to the first embodiment of the present invention in a state where the vertical ribs of the movable cover are disposed behind the position shown in FIG. 33F.
  • FIG. 3 is a diagram illustrating a relationship between a position of a vertical rib and a lift in the wiper blade according to the first embodiment of the present invention.
  • FIG. 4 is an aerodynamic analysis diagram in a state where a gap between a vertical rib of a movable cover and a blade rubber is set to be small in the wiper blade according to the first embodiment of the present invention.
  • FIG. 34B is an aerodynamic analysis diagram of the wiper blade according to the first embodiment of the present invention in a state where the gap between the vertical rib of the movable cover and the blade rubber is set to be larger than the state shown in FIG. 34A.
  • FIG. 34A is a diagram illustrating a relationship between a position of a vertical rib and a lift in the wiper blade according to the first embodiment of the present invention.
  • FIG. 4 is an aerodynamic analysis diagram in a state where a gap between a vertical rib of a movable cover and a blade rubber is set to be small in the wiper blade according to
  • FIG. 34B is an aerodynamic analysis diagram in a state where the gap between the vertical rib of the movable cover and the blade rubber is set to be larger than the state shown in FIG. 34B in the wiper blade according to the first embodiment of the present invention.
  • FIG. 34C is an aerodynamic analysis diagram in a state where the gap between the vertical rib of the movable cover and the blade rubber is set to be larger than the state shown in FIG. 34C in the wiper blade according to the first embodiment of the present invention.
  • FIG. 4 is a diagram illustrating a relationship between a clearance between a vertical rib of a movable cover and a blade rubber and a lift in the wiper blade according to the first embodiment of the present invention.
  • a line indicating the relationship between the position of the vertical rib and the lift when the gap between the vertical rib of the movable cover and the blade rubber is set as shown in FIG. 34A.
  • a line indicating the relationship between the position of the vertical rib and the lift when the gap between the vertical rib of the movable cover and the blade rubber is set as shown in FIG. 34B.
  • a line indicating the relationship between the position of the vertical rib and the lift when the gap between the vertical rib of the movable cover and the blade rubber is set as shown in FIG. 34C.
  • FIG. 34D a line indicating the relationship between the position of the vertical rib and the lift when the gap between the vertical rib of the movable cover and the blade rubber is set as shown in FIG. 34D.
  • FIG. 4 is an aerodynamic analysis diagram when the movable cover is not provided with a vertical rib in the wiper blade according to the first embodiment of the present invention.
  • FIG. 4 is an aerodynamic analysis diagram of the wiper blade according to the first embodiment of the present invention in a state where a vertical rib of a movable cover is disposed on a front side.
  • FIG. 4 is an aerodynamic analysis diagram in a state where a vertical rib of a movable cover is arranged above a rear end of a blade rubber in the wiper blade according to the first embodiment of the present invention.
  • FIG. 4 is an aerodynamic analysis diagram in a state where a gap between a vertical rib of a movable cover and a blade rubber is set to be small in the wiper blade according to the first embodiment of the present invention.
  • FIG. 4 is an aerodynamic analysis diagram in a state where a gap between a longitudinal rib of a movable cover and a blade rubber is set large in the wiper blade according to the first embodiment of the present invention.
  • FIG. 4 is an aerodynamic analysis diagram in a state where a vertical rib of a movable cover is arranged above a rear end of a blade rubber in the wiper blade according to the first embodiment of the present invention.
  • FIG. 4 is an aerodynamic analysis diagram in a state where a gap between a vertical rib of a movable cover
  • FIG. 4 is an aerodynamic analysis diagram in a state where a gap between a front wall of a movable cover and a blade rubber is set small in the wiper blade according to the first embodiment of the present invention.
  • FIG. 4 is an aerodynamic analysis diagram in a state where a gap between a front wall of a movable cover and a blade rubber is set large in the wiper blade according to the first embodiment of the present invention.
  • FIG. 13 shows the modification of the wiper blade which concerns on 1st Embodiment of this invention.
  • FIG. 15 shows the modification of the wiper blade which concerns on 1st Embodiment of this invention.
  • FIG. 13 shows the modification of the wiper blade which concerns on 1st Embodiment of this invention.
  • FIG. 15 shows the modification of the wiper blade which concerns on 1st Embodiment of this invention.
  • FIG. 13 shows the modification of the wiper blade which concerns on 1st Embodiment of this invention.
  • FIG. 15 shows the modification of the wiper blade
  • FIG. 13 which shows the wiper blade which concerns on 2nd Embodiment of this invention.
  • FIG. 19 is a perspective view corresponding to FIG. 18 and illustrating a tip end side portion of a wiper lever assembly according to a second embodiment of the present invention.
  • FIG. 7 is an aerodynamic analysis diagram of a wiper blade according to a comparative example.
  • FIG. 7 is an aerodynamic analysis diagram of a wiper blade according to a second embodiment of the present invention.
  • FIG. 10 is an aerodynamic analysis diagram in a state where a protrusion amount of a lever ridge is set to be large in the wiper blade according to the second embodiment of the present invention.
  • It is sectional drawing corresponding to FIG. 14 which shows the wiper blade which concerns on 3rd Embodiment of this invention.
  • FIG. 14 shows the wiper blade which concerns on 3rd Embodiment of this invention.
  • FIG. 49 is a cross-sectional view corresponding to FIG. 47 and illustrating an example in which a concave portion is formed on the lower surface of the yoke lever in the wiper blade according to the third embodiment of the present invention.
  • It is an aerodynamic analysis diagram of a wiper blade concerning a 3rd embodiment of the present invention.
  • FIG. 13 is an aerodynamic analysis diagram when a concave portion is formed on the lower surface of a yoke lever in the wiper blade according to the third embodiment of the present invention.
  • FIG. 2 is an aerodynamic analysis diagram of the wiper blade according to the first embodiment of the present invention.
  • FIG. 4 is an aerodynamic analysis diagram of a wiper blade according to a first comparative example.
  • FIG. 7 is an aerodynamic analysis diagram of a wiper blade according to a second comparative example.
  • the wiper blade 10 shown in FIGS. 1 to 17 wipes raindrops and the like attached to the wiping surface WS which is the outer surface of a windshield glass G (not shown in FIGS. 13 to 17) of a vehicle (automobile). And a wiper blade having a so-called tournament structure.
  • the wiper blade 10 is connected to a distal end of a wiper arm 12 (not shown in FIG. 1) and receives a pressing force from the wiper arm 12 toward the wiping surface WS.
  • the wiper arm 12 and the wiper blade 10 constitute a vehicle wiper.
  • the base end of the wiper arm 12 is fixed to a pivot shaft (not shown) that is reciprocated within a predetermined angle range by the driving force of a wiper motor (not shown), and the wiper arm 12 reciprocates by the reciprocating rotation of the pivot shaft. Rocked. Thereby, the wiper blade 10 connected to the tip of the wiper arm 12 is set at the lower inversion position set at the lower end of the windshield glass G, and at the upper end of the windshield glass G from the lower inversion position. Reciprocatingly swinging between the upper reversing position.
  • the wiper blade 10 includes a blade rubber 14 for wiping the wiping surface WS, and a wiper lever assembly 20 for gripping the blade rubber 14.
  • the wiper lever assembly 20 includes a main lever 22 having a distal end portion of the wiper arm 12 connected to a central portion in a longitudinal direction, and a pair of movable levers provided on both longitudinal sides of the main lever 22.
  • a pair of yokes in which the cover 60 is rotatably connected to the main lever 22 and the pair of movable covers 60 (in other words, the movable cover 60 is rotatably connected to the pair of yoke levers 96). It is constituted by a lever 96.
  • the wiper lever assembly 20 has a configuration in which the blade rubber 14 is gripped by a pair of movable covers 60 and a pair of yoke levers 96.
  • arrows UP and FR which are appropriately shown in the drawings, are respectively above and forward of the wiper blade 10, and the side on which the arrow BE is directed is the base end side (oscillation center side) of the wiper blade 10. I do.
  • the up-down direction of the wiper blade 10 is a direction orthogonal to the wiping surface WS, and the front-rear direction of the wiper blade 10 is the width direction of the wiper blade 10 and substantially coincides with the wiping direction.
  • the direction with respect to the wiper blade 10 is indicated.
  • the blade rubber 14 is formed in a long shape by, for example, rubber.
  • the blade rubber 14 includes an upper portion 14A gripped by the wiper lever assembly 20 and a wiping portion 14B extending downward from the upper portion 14A (to the wiping surface WS) and having a lower end portion pressed against the wiping surface WS.
  • a pair of backing grooves 16 that are open on both sides in the front-rear direction (width direction) are formed in the upper portion 14 ⁇ / b> A of the blade rubber 14 along the longitudinal direction of the blade rubber 14.
  • a backing (not shown) made of a metal leaf spring material is fitted into each of the backing grooves 16.
  • a pair of gripping grooves 18 opened on both sides in the front-rear direction are formed in the upper portion 14A of the blade rubber 14 below the pair of backing grooves 16 along the longitudinal direction of the blade rubber 14. .
  • the vertical positions of these gripping grooves 18 correspond to gripping portions 80 and 110 of the wiper lever assembly 20, which will be described later.
  • the wiper lever assembly 20 includes the main lever 22, the pair of movable covers 60, and the pair of yoke levers 96, as described above.
  • a portion on the distal end side (opposite to the swing center of the wiper blade 10) and a portion on the base end side (on the swing center side of the wiper blade 10) are symmetric or substantially symmetric. It is formed in the shape of.
  • the main lever 22 is made of, for example, a resin material, and has a long shape in the longitudinal direction of the wiper blade 10.
  • the main lever 22 forms an intermediate portion of the wiper lever assembly 20 in the longitudinal direction.
  • the main lever 22 has a connecting portion 22A at the center in the longitudinal direction, and a pair of arms 22B on both sides in the longitudinal direction of the connecting portion 22A.
  • the connecting portion 22A is formed in a rectangular frame shape having a length in the longitudinal direction of the main lever 22 when viewed in the up-down direction.
  • An opening 24 is formed in the connecting portion 22A so as to vertically pass through the connecting portion 22A.
  • the opening 24 is formed in an elongated shape having the longitudinal direction of the main lever 22 as a longitudinal direction.
  • a metal connecting shaft 26 connecting the front and rear walls of the connecting portion 22A is integrally formed at a central portion of the opening 24 in the longitudinal direction.
  • the distal end of the wiper arm 12 is connected to the connecting shaft 26 via a connecting clip 28.
  • each arm 22B extend integrally from the connecting portion 22A to both sides in the longitudinal direction of the wiper blade 10. As shown in FIGS. 7, 8, 13, and 14, these arms 22B have open cross-sectional shapes that open downward (toward the wiping surface WS) in the longitudinal direction of the main lever 22. The lower surface of each arm 22B is recessed upward when viewed in the longitudinal direction of the main lever 22 (when viewed in the longitudinal direction of the blade rubber 14). As shown in FIGS. 13, 14, and 21 to 23, each arm 22B includes an upper wall 30, a front wall 32 extending downward from a front end of the upper wall 30, and an upper wall 30.
  • the rear wall 40 extends downward from the rear end, and is slightly lower than the center in the front-rear direction of the upper wall 30 (in other words, between the front inner wall 36 and the rear wall 40 described later). And a plurality of reinforcing ribs 44 (see FIG. 23) extending between the front surface of the rear inner wall 42 and the lower surface of the upper wall 30.
  • the front wall 32 and the rear wall 40 face each other in the front-rear direction, and the upper wall 30 connects the upper ends of the front wall 32 and the rear wall 40 in the front-rear direction.
  • the plurality of reinforcing ribs 44 are arranged side by side in the longitudinal direction of the main lever 22, and are integrally connected to the upper wall 30 and the rear inner wall 42.
  • the front wall 32 has a front outer wall 34 and a front inner wall 36 facing each other in the front-rear direction, and a plurality of reinforcing ribs 38 connecting the front outer wall 34 and the front inner wall 36 in the front-rear direction.
  • the front outer wall 34 extends forward (one side in the width direction) and downward from the front end of the upper wall 30, and the front inner wall 36 is slightly behind the front outer wall 34 (slightly the other side in the width direction). It extends downward from the front end of the upper wall 30. That is, the front outer wall 34 is disposed on the front side with respect to the front inner wall 36.
  • the front outer wall 34 is curved so as to project forward and upward.
  • the length of the main lever 22 in the longitudinal direction of the front inner wall 36 is set smaller than that of the front outer wall 34, and the front inner wall 36 is not provided on the connecting portion 22A side of each arm 22B.
  • the plurality of reinforcing ribs 38 are arranged side by side in the longitudinal direction of the main lever 22 and are integrally connected to the upper wall 30, the front outer wall 34, and the front inner wall 36.
  • the front outer wall 34 extends below the front inner wall 36, and the lower end of the front outer wall 34 is disposed slightly lower than the lower end of the front inner wall 36. ing.
  • the lower end of the front inner wall 36 and the lower end of the rear wall 40 are disposed at substantially the same position (height) in the vertical direction.
  • the lower end of the rear inner wall 42 is located above the lower ends of the front inner wall 36 and the rear wall 40.
  • the rear wall 40 is formed so that the dimension (thickness) in the front-rear direction increases from the upper end side connected to the upper wall 30 to the lower end side.
  • each arm 22B (that is, both sides in the longitudinal direction of the main lever 22) configured as described above is formed by the upper surfaces of the upper wall 30 and the front outer wall 34.
  • a fin surface (first fin surface) 46 is formed which is inclined downward toward the front side of the vehicle (that is, the front side in the width direction; one side in the width direction).
  • Each fin surface 46 is inclined or curved (curved here) so as to move away from the wiping surface WS toward the rear side of the vehicle.
  • Each fin surface 46 is formed on the upper surface of each upper wall 30 on the front side of the vehicle, and extends in the longitudinal direction of the main lever 22.
  • These fin surfaces 46 extend slightly to the rear side from the center in the front-rear direction (width direction) of each arm 22B, and are curved so that the gradient increases toward the rear side. When the fin surfaces 46 receive the traveling wind during traveling of the vehicle, a pressing force is applied to the blade rubber 14 toward the wiping surface WS.
  • Each of the arms 22B on which the fin surfaces 46 are formed has a larger height dimension (a dimension in the vertical direction) on the rear side than on the front side in the front-rear direction.
  • a main housing chamber for housing a part of the yoke lever 96 is provided in each arm 22B (ie, both sides in the longitudinal direction of the main lever 22). 48 are formed.
  • the main storage chamber 48 is formed below the upper wall 30 between the front wall 32 and the rear wall 40, and opens to the lower side (the wiping surface WS side) and the outside of the main lever 22 in the longitudinal direction. .
  • the opening 48A on the lower side of the main storage chamber 48 corresponds to a "first opening.”
  • the opening 48A is referred to as a “first opening 48A”.
  • the main housing chamber 48 has a height dimension (a dimension in the vertical direction) that is larger at the rear side than at the front side in the width direction.
  • the above-described rear inner wall 42 is provided near the center in the front-rear direction of the main housing chamber 48, and the upper portion of the main housing chamber 48 is partitioned forward and rearward by the rear inner wall 42.
  • a central-side blocking wall (reinforcement rib) 50 is provided between the main storage chamber 48 and the above-described connecting portion 22A.
  • the chamber 48 and the inside of the connecting portion 22A are partitioned.
  • the center-side blocking wall 50 has a function of blocking a main storage chamber 48 described later in the longitudinal direction at the longitudinal center of the main lever 22 and a function of reinforcing the main lever 22.
  • both front and rear sides (width direction both sides) of each main accommodating chamber 48 in the width direction are respectively provided with convex portions (shafts).
  • Parts) 52 and 54 are formed. Specifically, at the lower end of the front inner wall 36 forming the front surface of the main housing chamber 48, a convex portion 52 projecting rearward is formed, and the lower end of the rear wall 40 forming the rear surface of the main housing chamber 48 is formed. A convex portion 54 protruding to the front side is formed on the front side.
  • each of the convex portions 52 and 54 is arranged opposite to each other in the front-rear direction of the main lever 22 (coaxially), and protrude in a direction approaching each other.
  • Each of the convex portions 52 and 54 has a substantially semicircular shape when viewed in the front-rear direction, and is arranged in such a manner that an arc-shaped curved surface is convex upward.
  • the opposing surfaces of the convex portions 52 and 54 are inclined or curved so as to go downward and outward in the front-rear direction.
  • a pair of vertically extending slits 56 are formed on the front inner wall 36 on both sides in the longitudinal direction of the main lever 22 with respect to the projection 52.
  • a portion between the pair of slits 56 (that is, a portion where the above-mentioned convex portion 52 is formed) is a flexible portion 36A.
  • the portions located on both sides are each a reinforcing portion 36B.
  • the flexible portion 36A is not reinforced by the above-described reinforcing rib 38, and the reinforcing portion 36B is reinforced by the above-described reinforcing rib 38. For this reason, the flexible portion 36A is more likely to bend back and forth in the width direction than the reinforcing portion 36B.
  • a notch 58 cut out from the lower side is formed at the lower end of the rear inner wall 42.
  • the notch 58 is formed in the vicinity of the protrusions 52 and 54.
  • the notch 58 is an “engaged portion”.
  • the pair of movable covers 60 are formed in a long shape by, for example, a resin material. These movable covers 60 are arranged on both sides in the longitudinal direction of the main lever 22 with the longitudinal direction of the main lever 22 as a longitudinal direction, as shown in FIGS. As shown in FIGS. 9 to 12, FIGS. 15 to 19, and FIG. 24, each movable cover 60 has an open cross-sectional shape opened downward (toward the wiping surface WS) in the longitudinal direction of each movable cover 60. The lower surface of each movable cover 60 is recessed upward when viewed in the longitudinal direction of each movable cover 60 (when viewed in the longitudinal direction of the blade rubber 14).
  • Each movable cover 60 includes an upper wall 62, a front wall 64 extending downward from a front end of the upper wall 62, a rear wall 72 extending downward from a rear end of the upper wall 62, Vertical ribs (inner walls) 75 extending (projecting) downward from the lower surface of the upper wall 62 between the front wall 64 and the rear wall 72, and the main lever 22 slightly longer than the central portion in the longitudinal direction of each movable cover 60.
  • the outer wall 73 connects the front wall 64, the vertical rib 75, and the rear wall 72 in the front-rear direction, and the front wall 64, the rear inner wall 74, and the rear side opposite to the main lever 22 via the outer wall 73.
  • the front wall 64 and the rear wall 72 face each other in the front-rear direction, and the upper wall 62 connects the upper ends of the front wall 64 and the rear wall 72 in the front-rear direction.
  • the vertical rib 75 extends in the longitudinal direction of each movable cover 60.
  • the outer blocking wall 73 and the plurality of partition walls 76 are arranged at a longitudinally intermediate portion of each movable cover 60, and are arranged at intervals in the longitudinal direction of each movable cover 60.
  • the outer blocking wall 73 and the plurality of partition walls 76 are integrally connected to the upper wall 62, the front wall 64, the rear wall 72, and the vertical rib 75.
  • the outer blocking wall 73 has both a function of blocking a movable accommodating chamber 86 described later in a longitudinal direction on the side opposite to the main lever 22 and a function of reinforcing the movable cover 60.
  • the plurality of partition walls 76 extend through a portion of the movable cover 60 opposite to the main lever 22 via the outer blocking wall 73, in other words, an inner space closer to the end than the movable storage chamber 86, and extend the longitudinal direction of the movable cover 60. It has both the function of partitioning in the direction and the function of reinforcing the above-mentioned parts.
  • the movable cover 60 may be configured to include only one partition wall 76.
  • each movable cover 60 has a plurality of reinforcing ribs 78 (see FIG. 24) bridged between the front surface of the rear inner wall 74 and the lower surface of the upper wall 62 on the main lever 22 side of the outer blocking wall 73. Have. These reinforcing ribs 78 are arranged side by side at intervals in the longitudinal direction of each movable cover 60, and are integrally connected to the upper wall 62 and the rear inner wall 74.
  • the front wall 64 has a front outer wall 66, a front inner wall 68, and a front outer wall 66 in which a portion closer to the main lever 22 than the outer blocking wall 73 is opposed in the front-rear direction. It is constituted by a plurality of reinforcing ribs 70 connecting the inner wall 68 in the front-rear direction.
  • the front outer wall 66 extends forward and downward from the front end of the upper wall 62, and the front inner wall 68 is slightly rearward (slightly the other side in the width direction) of the front outer wall 66 and the front end of the upper wall 62. From the lower side. That is, the front outer wall 66 is disposed on the front side with respect to the front inner wall 68.
  • the front outer wall 66 is curved so as to project forward and upward.
  • the front inner wall 68 is configured such that the dimension in the longitudinal direction of the movable cover 60 is set smaller than the front outer wall 66, and the front inner wall 68 is not provided on the outer blocking wall 73 side.
  • the plurality of reinforcing ribs 70 are arranged side by side in the longitudinal direction of the movable cover 60, and are integrally connected to the upper wall 62, the front outer wall 66, and the front inner wall 68.
  • the front outer wall 66 extends below the front inner wall 68, and the lower end of the front outer wall 66 is disposed below the lower end of the front inner wall 68.
  • the lower end of the front inner wall 68 and the lower end of the rear wall 72 are disposed at substantially the same position (height) in the vertical direction.
  • the lower end of the rear inner wall 74 is located above the lower ends of the front inner wall 68 and the rear wall 72.
  • a grip portion 80 for gripping the longitudinal end of the blade rubber 14 is formed at one longitudinal end of each movable cover 60 (the end opposite to the main lever 22).
  • the grip portion 80 has a pair of front and rear grip pieces 82 extending downward from the front wall 64 and the rear wall 72.
  • the distal ends (lower ends) of the gripping pieces 82 in the front and rear directions in the width direction are bent toward mutually approaching sides, and are fitted in the pair of gripping grooves 18 described above. As a result, the longitudinal end of the blade rubber 14 is gripped by the gripper 80.
  • each movable cover 60 configured as described above is configured by the upper surfaces of the upper wall 62 and the front outer wall 66.
  • a fin surface (second fin surface) 84 is formed which is inclined downward toward the front side of the vehicle (that is, the front side in the width direction; one side in the width direction).
  • Each fin surface 84 is inclined or curved (here, curved) so as to move away from the wiping surface WS toward the rear side of the vehicle.
  • Each fin surface 84 is formed at a position on the upper surface of each upper wall 62 on the vehicle front side, and extends in the longitudinal direction of the movable cover 60.
  • the fin surfaces 84 extend slightly to the rear side from the center in the front-rear direction of each movable cover 60, and are curved so that the gradient increases toward the rear side.
  • the height of each movable cover 60 on which the fin surfaces 84 are formed is larger on the rear side than on the front side in the front-rear direction.
  • a movable housing chamber 86 for housing a part of the yoke lever 96 is formed closer to the main lever 22 than the outer blocking wall 73 described above.
  • the movable storage chamber 86 is formed below the upper wall 62 between the front wall 64 and the rear wall 72. Surface WS side) and the main lever 22 side.
  • the opening 86A below the movable storage chamber 86 corresponds to a “second opening”.
  • the opening 86A is referred to as a “second opening 86A”.
  • the height of the movable storage chamber 86 is larger on the rear side than on the front side in the front-rear direction.
  • the above-described rear inner wall 74 is provided near the center in the front-rear direction of the movable storage chamber 86, and the upper portion of the movable storage chamber 86 is partitioned forward and rearward by the rear inner wall 74.
  • each movable storage chamber 86 in the width direction are set.
  • Convex portions 88 and 90 are formed on both surfaces, respectively. Specifically, at the lower end of the front inner wall 68 forming the front surface of the movable accommodating chamber 86, a convex portion 88 protruding rearward is formed, and the lower end of the rear wall 72 forming the rear surface of the movable accommodating chamber 86 is formed. A convex portion 90 protruding toward the front side is formed on the front side.
  • each of the convex portions 88 and 90 is arranged to face the movable cover 60 in the front-rear direction, and protrude in directions approaching each other.
  • Each of the convex portions 88 and 90 has a substantially semicircular shape when viewed in the front-rear direction, and is arranged in a posture in which an arc-shaped curved surface is convex upward.
  • the facing surface of each of the protrusions 88 and 90 (the surface facing the center in the front-rear direction of the movable storage chamber 86) is inclined or curved so as to go downward and outward in the front-rear direction.
  • a pair of vertically extending slits 92 are formed in the front inner wall 68 on both longitudinal sides of the movable cover 60 with respect to the projections 88.
  • a portion between the pair of slits 92 that is, a portion where the above-mentioned convex portion 88 is formed is a flexible portion 68A, and both sides in the longitudinal direction of the movable cover 60 with respect to the flexible portion 68A.
  • the flexible portion 68A is not reinforced by the above-described reinforcing rib 70, and the reinforcing portion 68B is reinforced by the above-described reinforcing rib 70. For this reason, the flexible portion 68A is more easily bent back and forth in the width direction than the reinforcing portion 68B.
  • a notch 94 cut from the lower side is formed at the lower end of the rear inner wall 74 in the movable storage chamber 86.
  • the notch 94 is formed near the above-mentioned protrusions 88 and 90.
  • the notch 94 is an “engaged portion”.
  • each yoke lever 96 includes a metal part 98 (see FIGS. 27 to 29) made of metal and a yoke lever main body part 108 as a resin part provided outside the metal part 98.
  • the metal part 98 is embedded in the yoke lever main body 108 by, for example, insert molding.
  • the metal part 98 is not limited to the configuration in which the metal part 98 is embedded in the yoke lever main body part 108 as a resin part.
  • each yoke lever 96 is not limited to the configuration including the metal portion 98 and the yoke lever main body portion 108 (resin portion), and each yoke lever 96 may include a configuration including only one of the metal portion and the resin portion.
  • the metal part 98 is manufactured by press-forming a metal plate made of, for example, stainless steel, and has a long shape having the longitudinal direction of the yoke lever 96 as a length.
  • the metal portion 98 includes a plate-like portion 98A having a plate thickness direction in the vertical direction, and a standing wall portion (reinforcement flange portion) extending upward from a width-direction rear end (the other end in the width direction) of the plate-like portion 98A. ) 98B, and the cross section viewed from the longitudinal direction is L-shaped.
  • a pair of through holes 100 and 102 are formed in the middle part of the metal part 98 in the longitudinal direction so as to be aligned in the longitudinal direction of the metal part 98. These through holes 100 and 102 are formed in a bent portion between the plate-shaped portion 98A and the upright wall portion 98B. Further, a pair of protrusions 104 and 106 protruding upward are formed at the upper end of the standing wall 98B so as to be arranged in the longitudinal direction of the metal part 98. These protruding portions 104 and 106 are disposed above the pair of through holes 100 and 102, and are formed in a substantially semicircular shape that protrudes upward when viewed in the front-rear direction.
  • the yoke lever main body 108 in which the metal part 98 is embedded is formed in the same shape as the metal part 98, and has a L-shaped cross section when viewed from the longitudinal direction. More specifically, the yoke lever main body 108 includes a plate-like portion 108A having a vertical thickness direction and a vertical wall portion 108B extending upward from a widthwise rear end of the plate-like portion 108A. And the cross section viewed from the longitudinal direction is L-shaped.
  • the plate-shaped portion 98A of the metal portion 98 is embedded in the plate-shaped portion 108A, and the standing wall portion 98B of the metal portion 98 is embedded in the standing wall portion 108B.
  • the plate-like portion 108A constituting the lower part of the yoke lever main body 108 has a smaller dimension in the width direction than the upright wall 108B constituting the upper part of the yoke lever main body 108.
  • the height of the yoke lever main body 108 (yoke lever 96) provided with the above-described upright wall 108B is enlarged stepwise at the rear side rather than the front side in the width direction, and viewed from the longitudinal direction.
  • the cross section is L-shaped.
  • Grip portions 110 for gripping the longitudinal middle portion of the blade rubber 14 are formed at both longitudinal end portions of the plate-shaped portion 108A.
  • Each grip portion 110 has a pair of front and rear grip pieces 112 extending downward from the front end and the rear end of the plate-shaped portion 108A.
  • the front end portions (lower end portions) of the front and rear gripping pieces 112 are bent toward the sides approaching each other, and are fitted into the pair of gripping grooves 18 described above.
  • the front gripping piece 112 protrudes forward from the plate-shaped portion 108A and then extends downward, and is arranged on the front side of the plate-shaped portion.
  • the plate-like portion 108A is notched rearward.
  • a gap 97 is formed between the lower surface of the plate-like portion 108A (the lower surface of the yoke lever 96) and the upper surface of the blade rubber 14 between the grip portions 110. I have.
  • a pair of recesses 114 and 116 are formed on the front surface of the plate-shaped portion 108A at the middle in the longitudinal direction, and a pair of recesses 114 and 116 are formed in the longitudinal direction of the yoke lever main body 108.
  • a pair of recesses 118 and 120 are formed in the yoke lever main body 108 in a line in the longitudinal direction.
  • the pair of recesses 114 and 116 and the pair of recesses 118 and 120 are arranged so as to be aligned in the longitudinal direction and the vertical direction of the yoke lever main body 108, and are opposed in the front-rear direction.
  • the recesses 114, 116, 118, and 120 are open at the outside and the lower side in the front-rear direction (open at the outer side and the lower side in the front-rear direction), and have a substantially semicircular shape when viewed in the front-rear direction. .
  • These concave portions 114, 116, 118, and 120 are arranged in such a manner that an arc-shaped curved surface protrudes upward.
  • the concave portions 118 and 120 formed on the rear surface of the plate-shaped portion 108A are formed at positions (positions facing in the width direction) corresponding to the pair of through holes 100 and 102 described above.
  • a concave portion may be formed in the metal portion 98 at a position corresponding to the concave portions 118 and 120, the concave portion being recessed to the opposite side to the concave portions 118 and 120.
  • a configuration may be employed in which a notch recessed toward the opposite side to the recesses 114 and 116 is formed at a position corresponding to the recesses 114 and 116 in the metal portion 98.
  • the yoke lever main body 108 has a front protruding portion (reference numeral is omitted) in which peripheral portions of the concave portions 114 and 116 protrude forward, and rear protruding portions in which peripheral portions of the concave portions 118 and 120 protrude rearward. (Symbol omitted).
  • a plurality of front protrusions 122 protruding forward are formed on the front surface in the width direction of the intermediate portion in the longitudinal direction of the plate-shaped portion 108A, and are formed side by side in the longitudinal direction of the yoke lever main body 108.
  • a plurality of rear protrusions 124 protruding rearward are provided on the rear surface in the width direction of the middle portion in the longitudinal direction of the upright wall portion 108B (the rear surface in the width direction of the middle portion in the longitudinal direction of the yoke lever body portion 108). are formed side by side in the longitudinal direction.
  • the front protrusion 122 has a larger protrusion amount from the front surface of the plate-like portion 108A than the front protrusion (the periphery of the recesses 114 and 116), and the rear protrusion 124 has the rear protrusion ( The protrusion amount from the rear surface of the yoke lever main body 108 is set to be larger than that of the recesses 118 and 120).
  • a plurality of inner protrusions 126 protruding forward are formed on the front surface in the width direction of the intermediate portion in the longitudinal direction of the upright wall portion 108B so as to be arranged in the longitudinal direction of the yoke lever main body portion 108.
  • the vertical dimension of these inner projections 126 is set to be equal to the vertical dimension of the standing wall 108B.
  • a pair of engaging projections 128 and 130 projecting forward are formed on the front surface in the width direction of the middle portion in the longitudinal direction of the upright wall portion 108B so as to be aligned in the longitudinal direction of the yoke lever main body portion 108.
  • the pair of engaging projections 128 and 130 correspond to “engaging portions”.
  • the pair of engagement projections 128 and 130 project forward from the upright wall 108B beyond the plurality of inner projections 126, and are also integrally connected to the upper surface of the plate-like portion 108A. That is, the pair of engaging projections 128 and 130 are provided across the boundary between the upright wall portion 108B and the plate-like portion 108A. In addition, the pair of engaging protrusions 128 and 130 are set to have a smaller vertical dimension than the plurality of inner protrusions 126.
  • the pair of engaging projections 128 and 130 are formed near the pair of recesses 114 and 116 and the pair of recesses 118 and 120 described above.
  • a pair of rear-side pressing portions 132 and 134 projecting upward are formed on the upper surface of the middle portion in the longitudinal direction of the standing wall portion 108B so as to be arranged in the longitudinal direction of the yoke lever main body portion 108.
  • These rear-side pressing portions 132 and 134 correspond to “pressing portions”.
  • the rear pressing portions 132 and 134 are disposed above the pair of recesses 118 and 120, and have a substantially semicircular shape that protrudes upward when viewed in the front-rear direction.
  • the pair of protruding portions 104 and 106 described above are embedded in the rear side pressing portions 132 and 134.
  • a pair of contact portions 136 and 138 projecting upward are formed on the upper surface of both ends in the longitudinal direction of the standing wall portion 108B.
  • the yoke lever 96 having the above-described configuration is housed in the longitudinal direction across the main housing chamber 48 of the main lever 22 and the movable housing chamber 86 of the movable cover 60, and has a width relative to the main lever 22 and the movable cover 60. It is connected rotatably around an axis extending in the direction. Specifically, the protrusions 52 and 54 coaxially arranged on the main lever 22 are fitted into the recesses 114 and 118 of the yoke lever 96, so that the main lever 22 and the yoke lever 96 can rotate.
  • the movable covers 60 and the yoke lever 96 are rotatable by fitting the convex portions 88 and 90 coaxially arranged on the movable cover 60 into the concave portions 116 and 120 of the yoke lever 96.
  • the yoke lever 96 is rotatably connected to the main lever 22 and the movable cover 60 at the lower plate-like portion 108A which is wider in front and rear than the upper wall portion 108B.
  • the yoke lever 96 is rotatably connected to the front inner wall 36 and the rear wall 40 of the main lever 22 and is rotatably connected to the front inner wall 68 and the rear wall 72 of the movable cover 60. ing.
  • the plate-like shape of the yoke lever 96 is provided between the front inner wall 36 and the rear wall 40 of the main lever 22 and between the front inner wall 68 and the rear wall 72 of the movable cover 60.
  • the unit 108A is housed.
  • the upright wall portion 108B of the yoke lever 96 is accommodated. That is, the main lever 22 and the movable cover 60 have a pair of opposing walls (the rear wall 40 and the rear inner wall 42, and the rear wall 72 and the rear inner wall 74) opposing each other with the standing wall portion 108B interposed therebetween.
  • the gripping portion 110 on the main lever 22 side includes the front inner wall 36 of the main lever 22 and the central blocking wall 50 (see FIGS. 22 and 23). Are housed in the main housing chamber 48 so as to be able to appear and disappear.
  • the grip 110 on the side opposite to the main lever 22 is housed in the movable housing chamber 86 between the front inner wall 68 and the outer blocking wall 73 of the movable cover 60.
  • the rear pressing portion 132 is located on the upper surface of the main housing chamber 48 (the lower surface of the upper wall 30).
  • the rear pressurizing portion 134 is in contact with the upper surface of the movable storage chamber 86 (the lower surface of the upper wall 62).
  • the rear pressing portions 132 and 134 are disposed rearward of the fin surfaces 46 and 84, and are disposed above and behind the blade rubber 14.
  • the plurality of front protrusions 122 formed on the yoke lever 96 project toward the reinforcing portion 36B provided on the front wall 32 of the main lever 22 and the reinforcing portion 68B provided on the front wall 64 of the movable cover 60. And is in contact with or close to the reinforcing portions 36B and 68B.
  • the plurality of inner protrusions 126 formed on the yoke lever 96 project toward the rear inner wall 42 of the main lever 22 and the rear inner wall 74 of the movable cover 60, and come into contact with the rear inner walls 42, 74. Or, they are close to each other.
  • the plurality of rear projections 124 formed on the yoke lever 96 project toward the rear wall 40 of the main lever 22 and the rear wall 72 of the movable cover 60. They are in contact or in close proximity. In the present embodiment, the plurality of rear protrusions 124 are in contact with or close to the upper to lower portions of the rear walls 40 and 72, but are not limited thereto. What is necessary is just to be in contact with or close to at least the upper side.
  • the engaging protrusion 128 is disposed in the notch 58 (see FIG. 23) formed on the rear inner wall 42 of the main lever 22.
  • the engaging projection 130 is disposed in a cutout 94 (see FIG. 24) formed in the rear inner wall 74 of the movable cover 60.
  • the engagement projections 128 and 130 and the cutouts 58 and 94 constitute a load transmission unit (reference numerals are omitted).
  • the load transmitting portion applies a load acting between the main lever 22 and the movable cover 60 and the yoke lever 96 along the longitudinal direction thereof to the engagement between the engagement protrusion 128 and the end of the notch 58. , And the engagement between the engagement protrusion 130 and the end of the notch 94 is received.
  • each of the main storage chamber 48 and the second opening 86A of each movable storage chamber 86 are closed by the plate-shaped part 108A of each yoke lever 96. Further, each of the main storage chambers 48 is blocked in the longitudinal direction at the center of the main lever 22 in the longitudinal direction by each of the central blocking walls 50, and each of the movable storage chambers 86 is separated from the main lever 22 by each of the outer blocking walls 73. Are blocked longitudinally on the opposite side.
  • each edge of each first opening 48A and each second opening 86A and each yoke lever 96 smooth rotation of each yoke lever 96 with respect to the main lever 22 and each movable cover 60 is allowed.
  • a narrow gap is formed to perform the operation. Specifically, as shown in FIG. 18 and FIG. 19, between the yoke lever 96 and the front inner walls 36 and 68 forming the front edges of the first openings 48A and the second openings 86A, respectively.
  • narrow gaps 150 and 152 having the same longitudinal dimension as the plurality of front projections 122 are secured, and the above-described smooth rotation is allowed.
  • Narrow gaps 154 and 156 having the same longitudinal dimension as the rear projection 124 are formed.
  • Narrow gaps 158 and 160 are also formed between each yoke lever 96 and each central blocking wall 50 and between each yoke lever 96 and each outer blocking wall 73.
  • Narrow gaps 162, 164, 166, and 168 are also formed between each grip portion 110 of each yoke lever 96 and the front walls 32, 64 and the rear walls 40, 72. Then, portions of each of the first openings 48A and each of the second openings 86A other than the above-mentioned gaps are closed by the respective yoke levers 96.
  • each movable cover 60 has a portion on the opposite side to the main lever 22 with respect to each movable storage chamber 86 (specifically, a portion on the longitudinal end side of the movable storage chamber 86).
  • the movable cover 60 has a plurality of partition walls 76 that are open on the lower side and partition the relevant portion in the longitudinal direction of each movable cover 60.
  • the longitudinal direction of the wiper blade 10 is located between the lower surface of the movable cover 60 recessed upward and the blade rubber 14.
  • a space 61 extending in the direction is formed.
  • a space 63 (see FIG. 17; hereinafter, referred to as a “front opening 63”) between a front wall 64 of the movable cover 60 and the blade rubber 14 is provided in a space 61 constituting an internal space of the wiper lever assembly 20. It is configured such that the traveling wind of the vehicle passes through it. The traveling wind that has entered the space 61 flows out to the rear side in the width direction of the wiper blade 10 through a gap (not shown) between the rear wall 72 of the movable cover 60 and the blade rubber 14.
  • a vertical rib 75 is formed on the lower surface of the movable cover 60 outside the yoke lever 96 in the longitudinal direction of the wiper blade 10.
  • the vertical rib 75 protrudes downward from the lower surface of the movable cover 60 and is disposed in the space 61 described above.
  • the vertical rib 75 is disposed above the widthwise rear end of the blade rubber 14, and extends in the longitudinal direction of the movable cover 60.
  • the vertical rib 75 corresponds to a “blocking portion”, and is configured to block the traveling wind flowing into the space 61 into the space 61.
  • P indicates the distance in the front-rear direction of the vertical rib 75 with respect to the front end surface of the blade rubber 14 (hereinafter, referred to as “vertical rib position P”)
  • G indicates the vertical rib 75 and the blade rubber.
  • 14 indicates the width of the gap 65 (hereinafter, referred to as “rib ⁇ rubber gap G”)
  • E indicates the width of the front opening 63 (hereinafter, referred to as “opening width E”).
  • the wiper blade 10 by adjusting the vertical rib position P, the rib ⁇ rubber gap G, and the opening width E, the internal space (space 61) of the movable cover 60 during high-speed running of the vehicle is adjusted.
  • the pressure can be adjusted.
  • the blade rubber 14 is gripped by the wiper lever assembly 20 having a tournament structure.
  • a pair of movable covers 60 are continuously arranged on both sides in the longitudinal direction of the main lever 22 where the distal end of the wiper arm 12 is connected to the center in the longitudinal direction.
  • fin surfaces 46 and 84 are formed, each of which has a downward slope toward the front in the width direction (front of the vehicle).
  • main housing chambers 48 are formed, each of which is open to the wiping surface WS side and whose height is enlarged at the rear side from the front side in the width direction.
  • the movable cover 60 is formed with a movable storage chamber 86 that is open toward the wiping surface WS and has a height dimension that is larger on the rear side than on the front side in the width direction.
  • a pair of yoke levers 96 accommodated in each of the main accommodation chambers 48 and each of the movable accommodation chambers 86 are rotatable around an axis extending in the width direction with respect to the main lever 22 and each of the movable covers 60. It is connected to.
  • the blade rubber 14 is gripped by gripping portions 80 provided on the opposite side of the main lever 22 in each movable cover 60 and gripping portions 110 provided at both ends in the longitudinal direction of each yoke lever 96. .
  • the pressing force applied from the wiper arm 12 to the main lever 22 is distributed and dispersed in the longitudinal direction of the blade rubber 14 via the backing made of each yoke lever 96 and a metal leaf spring material.
  • the distribution pressure on the surface WS becomes uniform, and the wiping performance is improved.
  • the yoke lever 96 accommodated in the main accommodation chamber 48 and the movable accommodation chamber 86 as described above has a height dimension that is larger at the rear side than at the front side in the width direction.
  • the yoke lever 96 can be compactly accommodated in the main accommodation chamber 48 and the movable accommodation chamber 86 while ensuring the strength of the yoke lever 96 by the enlargement.
  • the main lever 22 and the movable cover 60 having the fin surfaces 46 and 84 inclined downward toward the width direction front side (vehicle front side) are formed at the rear side of the front side in the width direction.
  • the height dimension is larger on the side, even if the main storage chamber 48 and the movable storage chamber 86 whose height dimensions are enlarged on the rear side than on the front side in the width direction as described above, the height is high. The increase in the size can be suppressed. Thus, in the wiper blade 10 (wiper lever assembly 20), even if the yoke lever 96 is stored in the main storage chamber 48 and the movable storage chamber 86, the height of the protrusion from the wiping surface WS can be suppressed to a low level. In addition, the drag can be reduced and the aerodynamic characteristics can be improved.
  • the fin surface 84 of the movable cover 60 receives the traveling wind, a pressing force is generated on the movable cover 60 itself, and the pressing force is applied to the blade rubber 14, particularly, the tip portion of the blade rubber 14 held by the gripping portion 80 of the movable cover 60. Since the pressure is applied, it is possible to urge the tip portion for wiping a portion having a large curvature curvature of the wiping surface WS at the time of high-speed running while keeping the protruding height from the wiping surface WS low.
  • each yoke lever 96 includes a metal part 98 made of metal and a yoke lever main body part 108 made of resin. It is configured.
  • the height (vertical dimension) of each yoke lever 96 is made smaller (lower) while ensuring the strength of each yoke lever 96, as compared with the case where each yoke lever 96 is made of only resin. can do.
  • the heights H1 and H2 see FIGS. 14 and 16; not shown in FIGS.
  • fin surfaces 46 and 84 are formed on the upper surface on both sides in the longitudinal direction of the main lever 22 and on the upper surface of each movable cover 60, respectively, and are inclined downward toward the front in the width direction. For this reason, the main storage chambers 48 and the movable storage chambers 86 formed on both sides in the longitudinal direction of the main lever 22 and on the movable covers 60 and opened on the wiping surface WS side are located on the front side in the width direction from the rear side. Also the height dimension is reduced.
  • the yoke lever 96 housed in the main housing chamber 48 and the movable housing chamber 86 includes a metal part 98 and a yoke lever main body 108 (hereinafter, referred to as a “resin part 108”). And the metal portion 98 and the resin portion 108 are respectively formed in a plate-like plate-like portion 98A, 108A whose vertical direction is a plate thickness direction, and from the width direction rear end side of the plate-like portion 98A, 108A. It has standing wall portions 98B and 108B protruding upward.
  • the height dimension is lower at the front side in the width direction than at the rear side, and thus the height dimension is lower at the front side in the width direction than at the rear side as described above.
  • the strength of the yoke lever 96 can be ensured by the upright wall portions 98B and 108B of the metal portion 98 and the resin portion 108 while the yoke lever 96 is compactly stored in the main storage chamber 48 and the movable storage chamber 86 thus formed. .
  • the main lever 22 and the movable cover 60 having the fin surfaces 46 and 84 having a downward slope toward the front in the width direction formed on the upper surface are higher in height at the rear side than at the front side in the width direction. Since the dimensions are increased, the main storage chamber 48 and the movable storage chamber 86 whose heights H1 and H2 are enlarged on the rear side rather than the front side in the width direction as described above can be formed.
  • the main storage chamber 48 and the movable storage chamber 86 are provided in the internal space of the wiper lever assembly 20, and the plate-like portions 98A and 108A and the upright wall portions 98B and 108B are formed over both the storage chambers 48 and 86.
  • the yoke lever 96 Since the yoke lever 96 is accommodated, an increase in the height dimension can be suppressed. As a result, in the wiper blade 10 (wiper lever assembly 20), the drag from the wiping surface WS can be suppressed to a low level to prevent obstruction of the driving view, and the drag can be reduced to improve the aerodynamic characteristics.
  • the fin surface 46 of the main lever 22 and the movable cover 60 is used.
  • , 84 are preferably gently inclined or curved from the windward to the leeward of the traveling wind (gradient gradient).
  • the height of each arm 22B of the main lever 22 and the movable cover 60 must be reduced toward the front in the width direction.
  • the height of the yoke lever 96 is larger on the rear side than on the front side in the width direction, and the height is lower on the front side in the width direction.
  • the degree of freedom in setting the shapes of the arms 22B and the movable cover 60 is increased, and the fin surfaces 46 and 84 can be easily set in a preferable shape.
  • the main lever 22 and the movable cover 60 are configured such that the fin surfaces 46, 84 are extended to the front side by the front outer walls 34, 66 extending forward and downward from the front ends of the upper walls 30, 62. Therefore, the slope of the fin surfaces 46 and 84 on the front side can be made gentle. As a result, it is possible to dramatically improve aerodynamic characteristics (particularly, reduction of lift).
  • the yoke lever 96 is formed in an L-shape when viewed in the longitudinal direction, and the height dimension is enlarged stepwise (stepped) at the rear side from the front side. For this reason, the yoke lever 96 can be compactly accommodated in the main accommodation chamber 48 and the movable accommodation chamber 86 while efficiently securing the strength of the yoke lever 96, so that the wiping surface WS of the wiper lever assembly 20 is provided.
  • the protruding height from the fin can be kept low to reduce drag and further improve aerodynamic characteristics.
  • the yoke lever 96 has a configuration in which the resin portion 108 is provided outside the metal portion 98. Therefore, the strength of the yoke lever 96 is ensured by the metal portion 98, and The degree of freedom in shape setting can be improved. That is, a complicated shape having the pair of grip portions 110, the plurality of front protrusions 122, the plurality of inner protrusions 126, the plurality of rear protrusions 124, and the like can be easily formed by the resin portion 108.
  • the metal part 98 made of metal is embedded in the yoke lever main body part 108 made of resin, and the exposure of the metal part 98 is reduced, so that coating for rust prevention and anti-glare ( Generally, black paint) can be eliminated. This also contributes to a reduction in manufacturing costs.
  • the yoke lever 96 since the metal part 98 made of metal is embedded in the yoke lever main body part 108 made of resin, the yoke lever 96 is compared with the case where the yoke lever 96 is formed only of the resin part. It is easy to achieve both lever strength and size reduction.
  • the projections 52, 54, 88, and 90 formed on both front and rear surfaces of the main storage chamber 48 and the movable storage chamber 86 in the width direction (ie, the front inner walls 36, 68 and the rear walls 40, 72).
  • the yoke lever 96 is rotatably connected to the main lever 22 and the movable cover 60 by fitting into the four concave portions 114, 118, 116, 120 formed on both sides in the width direction of the resin portion 108 of the yoke lever 96. Have been.
  • the main lever 22 and the movable cover 60 are rotatably connected to the yoke lever 96 by using a metal shaft member, the main lever 22 and the movable cover 60 and the yoke lever 96 are connected to each other.
  • the structure and assembly of each of the rotary connecting portions are simplified.
  • the four recesses 114, 116, 118, and 120 formed on both the front and rear surfaces in the width direction of the yoke lever 96 are open at the outer side and lower side in the front and rear direction, and are substantially semicircular when viewed in the front and rear direction. It is formed in a shape.
  • the height of the yoke lever 96 can be set smaller than when the recesses 114, 116, 118, and 120 are formed in a circular shape when viewed in the front-rear direction.
  • the protruding height from the wiping surface WS can be further reduced.
  • the yoke lever 96 is rotatably connected to the main lever 22 and the movable cover 60 at a lower plate-like portion 108A that is wider in front and rear than the upper standing wall portion 108B.
  • the axial length of each of the rotation connecting portions of the main lever 22 and the movable cover 60 and the yoke lever 96 can be set longer in the width direction, so that the posture of the yoke lever 96 with respect to the main lever 22 and the movable cover 60 (longitudinal direction) A change in the posture viewed from the direction, that is, the tilting posture) can be suppressed.
  • four recesses (114, 116, 118, and 114) formed in the resin portion 108 of the yoke lever 96 and serving as movable connection portions of the yoke lever 96 with the main lever 22 and the movable cover 60 are provided. 120) are formed on both sides in the width direction of the plate-like portion 108A of the resin portion 108.
  • the plate-like portion 108A is set to have a larger dimension in the width direction than the upright wall portion 108B.
  • each of the rotational connecting portions of the yoke lever 96 with the main lever 22 and the movable cover 60 is formed. Since the shaft length can be set longer in the width direction, a change in the attitude (tilt attitude) of the yoke lever 96 with respect to the main lever 22 and the movable cover 60 can be suppressed.
  • the metal portion 98 of the yoke lever 96 has through holes 100 and 102 formed at positions facing the recesses 118 and 120 in the width direction.
  • the thickness of the resin portion 108 is ensured so that the depth and the diameter of the concave portion due to the upright wall portion 98B of the metal portion 98 are not limited around the concave portions 118 and 120. The size in the direction can be reduced.
  • an upright wall portion 108B protruding upward is formed on the rear side of the yoke lever 96, and the main lever 22 and the movable cover 60 are opposed to each other across the upright wall portion 108B. It has opposing walls (the rear wall 40 and the rear inner wall 42, and the rear wall 72 and the rear inner wall 74). Thereby, the looseness of the yoke lever 96 with respect to the main lever 22 and the movable cover 60 can be suppressed by the engagement between the pair of opposed walls and the upright wall portion 108B.
  • the upper surface of the upright wall portion 108B provided on the rear side of the yoke lever 96 has a pair of rear sides that are in contact with the upper surface on the rear side of the main storage chamber 48 and the upper surface on the rear side of the movable storage chamber 86. Pressing sections 132 and 134 are provided. Accordingly, the pressing force from the wiper arm 12, the reaction force from the wiping surface WS, the pressing force converted by receiving the traveling wind, and the like are transmitted to the yoke lever 96 and the main lever via the pair of rear pressing portions 132 and 134.
  • the connection strength of each of the rotation connection portions can be designed to be low (for example, the concave portions 114 and 118 of the yoke lever 96 can be formed in a semicircular shape or a substantially semicircular shape when viewed in the front-rear direction).
  • the size can be reduced in the height direction, and the protrusion height of the wiper lever assembly 20 (wiper blade 10) from the wiping surface WS can be further reduced.
  • the rear pressing portions 132 and 134 are disposed on the rear side of the fin surfaces 46 and 84, the rear pressing portions 132 and 134 are formed on the fin surfaces 46 and 84.
  • the restriction on the shape can be prevented or suppressed, and the degree of freedom in setting the shape of the fin surfaces 46 and 84 is improved.
  • the metal part 98 of the yoke lever 96 has a pair of projecting parts 104 and 106 embedded in the pair of rear pressing parts 132 and 134. Accordingly, it is easy to secure the strength of the pair of rear pressing portions 134 and 132.
  • the main lever 22 and the movable cover 60 have front walls 32 and 64 that form the front surfaces of the main storage chamber 48 and the movable storage chamber 86, respectively. It has flexible portions 36A, 68A on which the convex portions 52, 88 are formed, and reinforcing portions 36B, 68B reinforced more than the flexible portions 36A, 68A. For this reason, the convex portions 52, 54, 88, 90 formed on both front and rear sides in the width direction of the main storage chamber 48 and the movable storage chamber 86 are replaced with concave portions 114, 118 formed on both front and rear sides in the width direction of the yoke lever 96.
  • the flexible portions 36A, 68A bend so that the convex portions 52, 88 formed on the flexible portions 36A, 68A are fitted into the concave portions of the yoke lever 96. 114 and 116 can be easily fitted.
  • the yoke lever 96 can abut against the reinforcing portions 36B and 68B.
  • each reinforcing portion 36B, 68B of the front inner walls 36, 68 of the main lever 22 and the movable cover 60 are connected to the front outer walls 34, 66 in the front-rear direction by the reinforcing ribs 38, 70. .
  • each reinforcing portion 36B, 68B can be reinforced with a simple configuration.
  • the main lever 22 and the movable cover 60 are provided with rear walls 40 and 72 forming the rear surfaces of the main storage chamber 48 and the movable storage chamber 86, respectively. And upper walls 30 and 62 respectively extending therefrom, and convex portions 54 and 90 are formed at lower end portions of the rear walls 40 and 72, respectively. For this reason, the convex portions 52, 54, 88, 90 formed on both front and rear sides in the width direction of the main storage chamber 48 and the movable storage chamber 86 are replaced with the four concave portions 114 formed on both front and rear sides in the width direction of the yoke lever 96.
  • the rear walls 40, 72 bend so that the convex portions 54, 90 formed at the lower end portions of the rear walls 40, 72 are connected to the yoke levers. It can be easily fitted into the 96 concave portions 114 and 116.
  • the plurality of rear protrusions 124 protruding from the yoke lever 96 cause the rear walls 40, 72
  • the upper side that is, a portion that is harder to bend back and forth than the lower side of the rear walls 40 and 72
  • the distance from the bending fulcrum is reduced, and the bending of the rear walls 40 and 72 can be suppressed.
  • the front outer walls 34 and 66 of the main lever 22 and the movable cover 60 are curved so as to project forward and upward. Accordingly, the airflow that has interfered with the front outer walls 34 and 66 from one side in the width direction can easily flow smoothly to the upper surfaces of the upper walls 30 and 62. Moreover, each of the front outer walls 34, 66 extends below the respective front inner walls 36, 68. As a result, while the front outer walls 34 and 66 are reinforced by the front inner walls 36 and 68, the front outer walls 34 and 66 collide with snow or the like that has accumulated near the lower turning position of the wiping surface WS and have an internal space (space 61) of the wiper lever assembly 20. , The main storage chamber 48 and the movable storage chamber 86).
  • the plurality of front protrusions 122, the plurality of rear protrusions 124, and the plurality of inner protrusions 126 protruding from the yoke lever 96 are formed by the main lever 22 and the front inner walls 36, 68 of the movable cover 60, and the rear wall. 40, 72 and the rear inner walls 42, 74, respectively, in point contact. Therefore, compared to the configuration in which the yoke lever 96 contacts the above-mentioned walls in a wide area in a planar manner, the management of dimensions becomes easier.
  • the main lever 22 and the movable cover 60 are formed by the cutouts 58 and 94 formed in the rear inner walls 42 and 74 and the engagement protrusions 128 and 130 provided in the yoke lever 96. It has a load transmitting unit. In this load transmitting portion, the load acting along the longitudinal direction between the main lever 22 and the movable cover 60 and the yoke lever 96 is applied to the ends of the cutouts 58 and 94 and the engagement protrusions 128, It is received by engagement with 130. Thereby, it is possible to prevent or suppress the above-mentioned load from acting on the respective rotational connecting portions of the yoke lever 96, the main lever 22, and the movable cover 60.
  • the first opening 48A of each main storage chamber 48 and the second opening 86A of each movable storage chamber 86 are formed by the plate-like portion 108A of each yoke lever 96. Blocked (standing). Accordingly, it is possible to positively suppress the airflow that has interfered with the wiper blade 10 from flowing into the main storage chamber 48 and the movable storage chamber 86. As a result, turbulence in the airflow due to the inflow of the wiper lever assembly into the internal space can be prevented or suppressed, so that aerodynamic characteristics can be improved.
  • each yoke lever 96 is formed in a plate shape with the vertical direction being the plate thickness direction, each of the first opening 48A and each of the second openings 86A that open downward are formed. It can be closed efficiently.
  • fin surfaces 46 and 84 are formed on the upper surface on both sides in the longitudinal direction of the main lever 22 and on the upper surface of each movable cover 60, respectively. I have. For this reason, the main housing chambers 48 and the movable housing chambers 86 formed on both sides of the main lever 22 in the longitudinal direction and on the movable covers 60 are smaller at the front side than at the rear side.
  • each yoke lever 96 housed in each main housing chamber 48 and each movable housing chamber 86 includes plate-shaped plate-shaped portions 98A and 108A whose vertical direction is a plate thickness direction. It has standing wall portions 98B and 108B protruding upward from the other ends in the width direction of the plate portions 98A and 108A.
  • the height dimension is smaller at the front side than at the rear side, so that the yoke levers 96 are compactly accommodated in the main accommodation chambers 48 and the movable accommodation chambers 86.
  • each yoke lever can be ensured by each of the upright walls 98B and 108B.
  • the main lever 22 and the movable cover 60 having the fin surfaces 46 and 84 inclined downward toward one side in the width direction formed on the upper surface as described above have a height dimension at the rear side of the widthwise front side. Is increased, even if the main storage chamber 48 and the movable storage chamber 86 whose heights are enlarged at the rear side than at the front side in the width direction as described above, the increase in the height dimension is prevented. Can be suppressed. As a result, in the wiper blade 10 (wiper lever assembly 20), the protruding height from the wiping surface WS can be kept low, so that the drag can be reduced and the aerodynamic characteristics can be improved.
  • the main lever 22 has a pair of central-side blocking walls 50 that block the main storage chambers 48 in the longitudinal direction at the longitudinal center of the main lever 22.
  • the flow of airflow from the center in the longitudinal direction to the inside of each main storage chamber 48 can be prevented or suppressed by the pair of center-side blocking walls 50.
  • each movable cover 60 has the outer blocking wall 73 that blocks each movable storage chamber 86 in the longitudinal direction on the side opposite to the main lever 22, the inside of each movable storage chamber 86 is removed.
  • the airflow that tends to flow toward the longitudinal end side can be prevented or suppressed by the outer blocking wall 73 described above.
  • the wiper lever assembly by suppressing the flow of the airflow toward the longitudinal end in the internal space of the wiper lever assembly, it is possible to promote the wiper lever assembly as the flow of the airflow passing from the front side to the rear side in the width direction.
  • each of the movable covers 60 has a portion opposite to the main lever 22 through each of the movable storage chambers 86 and is opened downward, and partitions the corresponding portions in the longitudinal direction of the movable cover 60. It has a plurality of partition walls 76.
  • the flow of airflow from the movable storage chamber 86 side of each movable cover 60 to the opposite side to the main lever 22 can be prevented or suppressed by the plurality of partition walls 76.
  • the vertical rib 75 protrudes downward from the lower surface of the movable cover 60 that is recessed upward in the longitudinal direction of the blade rubber 14.
  • the vertical rib 75 is disposed in an internal space (space 61) of the movable cover 60 that forms an internal space of the wiper lever assembly 20 between the movable cover 60 and the blade rubber 14, and extends in the longitudinal direction of the blade rubber 14. Extending.
  • the vertical ribs 75 block the traveling wind flowing into the space 61 in the space 61.
  • the pressure in the space 61 increases, and the increase in the pressure is adjusted by the blocking portion, so that the lift generated on the blade rubber 14 is appropriately reduced.
  • the lifting of the blade rubber 14 is suppressed below the movable cover 60, so that the wiping performance is improved.
  • a force acts on the wiper blade 10 according to the present embodiment as schematically shown in FIG.
  • a downward arrow indicates a negative lift (a pressing force on the wiping surface WS)
  • an upward arrow indicates a positive lift (a force in a direction of lifting from the wiping surface).
  • Negative lift generated in the wiper arm 12 and the main lever 22 is distributed to the grip portion 110 (support point) of the blade rubber 14 in the yoke lever 96 (see the dotted arrow in FIG. 30). Further, the negative lift generated in the movable cover 60 is generated by pressing the fin surface 84 of the movable cover 60 when the vehicle travels at a high speed or the like, thereby generating a pressing force on the movable cover 60 itself. A pressing force acts on the grip portion 110 (support point) of the rubber 14 and the grip portion 80 (support point) of the blade rubber 14 on the movable cover 60 (see the hatched arrow in FIG. 30). On the other hand, the positive lift generated in the blade rubber 14 is generated in the entire region in the longitudinal direction of the blade rubber 14 (see the white arrow shown in FIG. 30).
  • the wiper is generated by the traveling wind W passing through the gap between the wiper lever assembly 20 and the blade rubber 14.
  • the internal space of the lever assembly 20 is in a relatively low pressure state, particularly between the grip portion 80 of the movable cover 60 and the yoke lever 96 (the longitudinal range where the yoke lever 96 is not disposed in the internal space of the movable cover 60). Therefore, the blade rubber 14 may be lifted.
  • the traveling wind W during high-speed traveling causes the front area FA of the blade rubber 14 and the area UA above the movable cover 60 to have a high pressure, and the rear area RA of the wiper blade 10 and the space 61
  • the pressure inside the area GA is relatively low. Therefore, a negative lift is generated in the movable cover 60, and a positive lift is generated in the blade rubber 14. This positive lift causes the blade rubber 14 to lift.
  • the movable cover 60 is provided with the vertical ribs 75 continuously in the internal space (in the space 61) along the longitudinal direction.
  • the pressure in the area GA in the space 61 can be appropriately increased.
  • the lift generated in the blade rubber 14 by the pressure in the area GA can be reduced.
  • the vertical ribs 75 protruding downward from the lower surface of the movable cover 60 which is recessed upward in the longitudinal direction of the blade rubber 14 are disposed above the widthwise rear end of the blade rubber 14.
  • the pressure of the traveling wind blocked by the vertical rib 75 increases, so that the width of the blade rubber 14 in the width direction increases.
  • the above-described high pressure can be applied to a wide range of the upper surface of the blade rubber 14 as compared with the case where the vertical rib 75 is disposed above the front end. As a result, the effect of reducing the lift generated in the blade rubber 14 is improved.
  • both sides of the main lever 22 in the longitudinal direction and each movable cover 60 are respectively opposed to the front walls 32, 64 and the rear walls 40, 72 facing the width direction, and the front walls 32, 64, and the rear wall 40.
  • , 72 are connected in the width direction to each other, and the front walls 32, 64 are respectively disposed on the front inner walls 36, 68 and on the front side with respect to the front inner walls 36, 68.
  • the respective yoke levers 96 are rotatably connected to the front inner walls 36, 68 and the rear walls 40, 72, respectively, and the first fin surfaces 46 and the second fin surfaces 84 are respectively connected to the upper wall.
  • the front walls 32 and 64 are composed of the front inner walls 36 and 68 that are pivotally connected to the yoke levers 96 and the front outer walls 34 and 66 that form the front portions of the fin surfaces 46 and 84. It has a heavy structure. Since the front outer walls 34, 66 are disposed on the front side with respect to the front inner walls 36, 68, the above-mentioned fin surfaces 46, 84 having a downward slope toward the front side are enlarged (extended) to one side in the width direction. Can be. Accordingly, the gradient of each of the fin surfaces 46 and 84 can be set gently on one side in the width direction, so that aerodynamic characteristics can be improved.
  • FIGS. 33A to 33G, FIGS. 34A to 34D, and FIGS. 36A to 38B are aerodynamic analysis diagrams using a computer.
  • 33A to 33G reference numerals are omitted for the blade rubber 14 and the movable cover 60.
  • the vertical rib position P, the gap width G, and the opening width E shown in FIG. 17 were individually adjusted (changed), and the lift generated in the wiper blade 10 was analyzed.
  • FIGS. 33A to 33H a description will be given of a change in lift due to a change in the vertical rib position P.
  • FIG. 33A to 33H a description will be given of a change in lift due to a change in the vertical rib position P.
  • the gap width G and the opening width E are set to be constant, and the vertical rib position P is changed to P1 to P7.
  • the vertical rib positions P1 to P7 are set in a relationship of P1 ⁇ P2 ⁇ P3 ⁇ P4 ⁇ P5 ⁇ P6 ⁇ P7.
  • the relationship between the change of the vertical rib position P and the lift generated on the blade rubber 14 is shown by a diagram in FIG. 33H.
  • the lift generated on the blade rubber 14 at the vertical rib positions P1 to P7 is indicated by “ ⁇ ”. This is the same in FIGS. 34E to 35D.
  • FIGS. 33A to 33H show that when the vertical ribs 75 are arranged above the widthwise rear end of the blade rubber 14, the lift reduction effect of the blade rubber 14 is enhanced.
  • FIGS. 34A to 34E a change in the lift of the blade rubber 14 due to the change in the gap width G will be described.
  • the vertical rib position P and the opening width E are set to be constant, and the gap width G is changed to G1 to G4.
  • the gap widths G1 to G4 are set to satisfy the relationship of G1 ⁇ G2 ⁇ G3 ⁇ G4.
  • the relationship between the change in the gap width G and the lift generated on the blade rubber 14 is shown by a diagram in FIG. 34E.
  • 34A to 34E show that the smaller the gap width G, the higher the pressure in the space 61 in front of the longitudinal rib 75 in the width direction, and the lower the lift generated on the blade rubber 14.
  • the opening width E is set to be constant.
  • the gap width G is set to G1
  • the vertical rib position P is changed.
  • the gap width G is set to G2
  • the gap width G is set to G3
  • the gap width G is set to G4
  • the vertical rib position P is changed.
  • the configuration in which the movable cover 60 includes the vertical rib 75 (see FIG. 36B and FIG. It was confirmed that the pressure above the blade rubber 14 could be increased inside. Furthermore, since the front in the width direction of the vertical rib 75 is higher in pressure than the rear in the width direction, in order to increase the pressure in the entire width direction on the upper surface of the blade rubber 14, It was confirmed that disposing the vertical ribs 75 in the vicinity was effective.
  • the gap width G is set to be small (see FIG. 37A)
  • the pressure in the width direction front of the vertical rib 75 becomes higher than when the gap width G is set to be large (see FIG. 37B). confirmed.
  • the opening width E is set to be large (see FIG. 38B) as compared with the case where the opening width E is set to be small (see FIG. 38A)
  • the flow amount of the traveling wind into the space 61 is changed (increased). It was also confirmed that the pressure in the width direction front of the vertical rib 75 became higher, and it was found that the lift generated in the blade rubber 14 (the internal pressure in the space 61) could be adjusted.
  • the upper surface on the front side of the yoke lever 96 (the upper surface of the plate-like portion 108A) and the upper surface on the front side of the main storage chamber 48 and the movable storage chamber 86 A configuration in which a pair of front-side pressing portions 140 and 142 that are in contact with the upper surface on the front side may be provided.
  • the pair of front-side pressing units 140 and 142 correspond to a “pressing unit”.
  • each of the rotation connecting portions can be downsized in the height direction of the yoke lever 96.
  • the height of the wiper lever assembly 20 (the wiper blade 10) protruding from the wiping surface WS can be further reduced.
  • the front-side pressing portions 140 and 142 are disposed above the blade rubber 14, the pressing force from the wiper arm 12 is applied to the blade rubber 14 from above (without offsetting forward and backward). Can be.
  • FIG. 41 shows a wiper blade 200 according to a second embodiment of the present invention in a sectional view corresponding to FIG. 14, and FIG. 42 shows a wiper lever of the wiper blade 200 according to the second embodiment.
  • the configuration of the distal end side portion of the assembly 20 is shown in a perspective view corresponding to FIG.
  • the wiper blade 200 according to the second embodiment has basically the same configuration as the wiper blade 10 according to the first embodiment, but a lever protrusion 202 serving as a blocking member is provided on the lower surface of the yoke lever 96. The projection is formed.
  • the wiper lever assembly 20 has the same configuration as the above-described modification of the first embodiment.
  • the lever ridge 202 is formed integrally with the yoke lever main body 108, protrudes from the rear end in the width direction on the lower surface of the yoke lever main body 108, and extends in the longitudinal direction of the blade rubber 14. ing.
  • This lever ridge 202 is disposed on the rear side in the front-rear direction with respect to the blade rubber 14, and faces the gap 97 between the blade rubber 14 and the yoke lever 96 from the rear side in the width direction.
  • the front end face in the width direction of the lever ridge 202 is disposed rearward in the width direction from the rear end face in the width direction of the blade rubber 14 (see a two-dot chain line FS in FIG. 41).
  • the yoke lever 96 is reinforced by the lever ridge 202, and the bending strength of the yoke lever 96 is improved.
  • the width of the lever ridge 202 must be increased to the widthwise rear end surface of the yoke lever 96 (see a two-dot chain line RS in FIG. 41). preferable.
  • a lever ridge 202 protruding from the widthwise rear end of the lower surface of the yoke lever 96 extends in the longitudinal direction of the blade rubber 14.
  • the lever projections 202 block the traveling wind flowing into the gap 97 between the blade rubber 14 and the yoke lever 96 in the gap 97. Accordingly, even when it is difficult to form the vertical rib 75 from the lower surface of the movable cover 60 or the main lever 22 due to the presence of the yoke lever 96, the pressure in the gap 97 can be increased. On the lower side, the lifting of the blade rubber 14 can be suppressed.
  • the running wind blocked by the lever ridge 202 increases the pressure.
  • the high pressure can be applied to a wide range of the upper surface of the blade rubber 14 as compared with the case where the lever protrusion 202 is formed on the front end side in the width direction. As a result, the effect of reducing the lift generated in the blade rubber 14 is improved.
  • the lever ridge 202 is disposed rearward in the width direction of the blade rubber 14.
  • the vertical movement can be prevented from being hindered by the contact between the lever ridge 202 and the blade rubber 14.
  • the yoke lever 96 is reinforced by the lever ridge 202 described above.
  • the yoke lever 96 can be made of only resin (the metal part 98 is omitted).
  • FIG. 43A is an aerodynamic analysis diagram of a comparative example in which the yoke lever 96 does not have the lever ridge 202
  • FIG. 43B is an aerodynamic analysis diagram of the wiper blade 200 according to the second embodiment
  • FIG. 9 is an aerodynamic analysis diagram in a state where the protrusion amount (vertical dimension) of a lever ridge 202 is set large in the wiper blade 200 according to the second embodiment.
  • FIG. 44 shows a wiper blade 300 according to the third embodiment of the present invention in a sectional view corresponding to FIG. 14, and FIG. 45 shows a wiper blade 300 according to the third embodiment.
  • the wiper blade 300 according to the third embodiment has basically the same configuration as the wiper blade 10 according to the first embodiment. However, a rubber ridge 302 as a blocking portion is provided on the upper surface of the blade rubber 14. The projection is formed.
  • the wiper lever assembly 20 has the same configuration as the above-described modification of the first embodiment.
  • the rubber ridge 302 is formed integrally with the blade rubber 14 and protrudes from the widthwise rear end of the upper surface of the blade rubber 14.
  • the rubber protrusions 302 extend over the entire length of the blade rubber 104 in the longitudinal direction, and are also arranged in the gap 97 between the yoke lever 96 and the blade rubber 14. Further, in the example shown in FIG. 45, a concave portion 304 capable of accommodating the rubber ridge 302 is formed on the lower surface of the yoke lever 96 at a position corresponding to the rubber ridge 302.
  • the configuration other than the above is the same as that of the first embodiment. Therefore, in this embodiment, the same operation and effect as those of the first embodiment can be obtained.
  • the rubber protrusion 302 protruding from the widthwise rear end of the upper surface of the blade rubber 14 is disposed in the gap 97 between the yoke lever 96 and the blade rubber 14, and Extend in the longitudinal direction. Accordingly, the traveling wind flowing into the gap 97 can be blocked by the rubber ridge 302, and the pressure in the gap 97 can be increased. As a result, the lifting of the blade rubber 14 under the yoke lever 96 can be suppressed.
  • the pressure increases due to the traveling wind blocked by the rubber protrusions 302 on the front side in the width direction from the rubber protrusions 302, that is, before the rear end in the width direction on the upper surface of the blade rubber 14, so that the blade rubber is increased.
  • the above high pressure can be applied to a wide range of the upper surface of the blade rubber 14 as compared with the case where the rubber protrusion 302 is formed on the front end side in the width direction on the upper surface of the 14. As a result, the effect of reducing the lift generated in the blade rubber 14 is improved.
  • a concave portion 304 capable of accommodating the rubber protrusion 302 is formed at a position corresponding to the rubber protrusion 302 on the lower surface of the yoke lever 96.
  • FIGS. 46A and 46B the results of aerodynamic analysis of the wiper blade 300 according to the third embodiment will be described with reference to FIGS. 46A and 46B.
  • FIG. 46A is a diagram of the wiper blade 300 according to the third embodiment.
  • FIG. 46B is an aerodynamic analysis diagram of the wiper blade 300 according to the third embodiment in a case where the concave portion 304 is formed on the lower surface of the yoke lever 96.
  • FIG. 47 is an aerodynamic analysis diagram of the wiper blade 10 according to the first embodiment
  • FIG. 48 is an aerodynamic analysis diagram of the wiper blade 200 according to the first comparative example
  • FIG. 49 is a diagram related to the second comparative example
  • FIG. 4 is an aerodynamic analysis diagram of the wiper blade 300.
  • the wiper blades 200 and 300 are wiper blades having a conventional tournament structure.
  • the yoke levers (symbols omitted) provided on these wiper blades 200 and 300 are larger in height than the yoke lever 96 provided on the wiper blade 10.
  • the height of the wiper blade 10 is set to be smaller than the height of the wiper blade 200.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Quality & Reliability (AREA)
  • Ink Jet (AREA)
  • Switches With Compound Operations (AREA)
PCT/JP2019/022633 2018-09-18 2019-06-06 ワイパレバーアッセンブリ及びワイパブレード WO2020059221A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US17/275,519 US11560124B2 (en) 2018-09-18 2019-06-06 Wiper lever assembly and wiper blade
CN201980060996.6A CN112739584A (zh) 2018-09-18 2019-06-06 雨刮杆组件以及雨刮板
DE112019004654.3T DE112019004654T5 (de) 2018-09-18 2019-06-06 Wischerhebelbaugruppe und Wischerblatt

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
JP2018173730A JP7131226B2 (ja) 2018-09-18 2018-09-18 ワイパレバーアッセンブリ及びワイパブレード
JP2018-173730 2018-09-18
JP2018-176479 2018-09-20
JP2018-176480 2018-09-20
JP2018176479A JP7131238B2 (ja) 2018-09-20 2018-09-20 ワイパブレード
JP2018176480A JP7131239B2 (ja) 2018-09-20 2018-09-20 ワイパレバーアッセンブリ及びワイパブレード
JP2018179440A JP7044021B2 (ja) 2018-09-25 2018-09-25 ワイパレバーアッセンブリ及びワイパブレード
JP2018-179440 2018-09-25
JP2018-182682 2018-09-27
JP2018182682A JP7131257B2 (ja) 2018-09-27 2018-09-27 ワイパレバーアッセンブリ及びワイパブレード

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DE102022211361A1 (de) 2022-10-26 2024-05-02 Robert Bosch Gesellschaft mit beschränkter Haftung Wischblatt, Wischleisteneinheit und Versteifungselement für ein Wischblatt

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JP2014019218A (ja) * 2012-07-13 2014-02-03 Asmo Co Ltd ワイパブレード
JP2014083885A (ja) * 2012-10-19 2014-05-12 Asmo Co Ltd ワイパ用レバーの製造方法、及びワイパ用レバー

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DE19906288A1 (de) 1999-02-15 2000-08-17 Bosch Gmbh Robert Vorrichtung zum gelenkigen Verbinden eines Wischblatts für Scheiben von Kraftfahrzeugen mit einem Wischerarm
JP4395479B2 (ja) 2003-02-21 2010-01-06 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング ワイパブレードを製造するための方法ならびに該方法を実施するための装置および該方法により製造されたワイパブレード
JP2005297940A (ja) * 2004-03-18 2005-10-27 Asmo Co Ltd ワイパブレード
US7603742B2 (en) 2004-01-30 2009-10-20 Asmo Co., Ltd. Wiper blade and wiper system having the same
JP4316463B2 (ja) 2004-09-28 2009-08-19 アスモ株式会社 ワイパブレード
JP2008049785A (ja) 2006-08-23 2008-03-06 Asmo Co Ltd 車両用ワイパ
JP5545864B2 (ja) * 2010-10-15 2014-07-09 アスモ株式会社 ワイパブレード
CN102582584B (zh) * 2011-01-14 2014-08-27 东莞鸿益雨刷有限公司 雨刷架及其制造方法
KR101426001B1 (ko) 2014-03-07 2014-08-05 에이디엠이십일 주식회사 와이퍼 블레이드

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WO2010035794A1 (ja) * 2008-09-29 2010-04-01 アスモ 株式会社 ワイパブレード
JP2014019218A (ja) * 2012-07-13 2014-02-03 Asmo Co Ltd ワイパブレード
JP2014083885A (ja) * 2012-10-19 2014-05-12 Asmo Co Ltd ワイパ用レバーの製造方法、及びワイパ用レバー

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CN112739584A (zh) 2021-04-30
US20220032877A1 (en) 2022-02-03

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